There are two of you with exactly the same HLA.This means that you have one HLA identical sibling.We often refer to this as an "identical match". Twoother siblings share one-halfof the same HLA asyou. This is referred to as a "one-haplotype match".Finally, one sibling does not share any HLA withyou, thus she is referred to as a "two-haplotypemismatch". This family represents all of the possibleHLA combinations that could be inherited from theseparents.It is possible (though not as likely) that yourgrandparents, uncles, aunts, or cousins could be aone-haplotype match. There are many differentHuman Leukocyte Antigens in the generalpopulation, however, you may share HLA withsomeone not even related to you. |
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